# US 2026/0093433 A1 · Control method and display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0093433 A1 - Document ID: US20260093433A1 - Status: Published application - Kind: A1 - Application number: 19/341,445 - Filed: 2025-09-26 - Published: 2026-04-02 - Earliest claimed: 2024-09-30 - Assignees: Seiko Epson Corporation - Applicants: Seiko Epson Corporation - Inventors: Katsuyoshi YAMAGUCHI - Web page: https://patentgrep.com/patent/US20260093433A1 ## CPC - G06F 3/1423: {controlling a plurality of local displays, e.g. CRT and flat panel display} - G06F 3/1407: {General aspects irrespective of display type, e.g. determination of decimal point position, display with fixed or driving decimal point, suppression of non-significant zeros} - G06F 3/1454: {involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay} - G06F 3/147: using display panels - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A display device that establishes first communication with a first device via a wired cable and is capable of communicating with a second device; includes the first device and the display device are capable of communicating with each other via a network; the first device does not store an application program, and the second device stores an application program; wherein the display device transmitting information indicating that the second communication is requested to the first device via the network or the wired cable when information requesting the second communication between the second device and the display device is received from the second device by the application program while the first image is displayed in the display region; and establishing the second communication when information indicating that the second communication was accepted is received from the first device via the network or the wired cable. ## Claims ### Claim 1 A control method for a display system including a first device, a second device, and a display device that establishes first communication with the first device via a wired cable, that is configured to communicate with the second device, and that is configured to display an image in a display region, wherein the first device and the display device are configured to communicate with each other via a network, the first device does not store an application program, the second device stores the application program, and the display device when information from the second device requesting a second communication between the second device and the display device is received by the application program while a first image is being displayed in the display region, transmits, to the first device via the network or the wired cable, information indicating that the second communication was requested and when information indicating that the second communication was accepted is received from the first device via the network or the wired cable, establishes the second communication. ### Claim 2 (depends on 1) The control method according to claim 1, wherein the display system includes a third device configured to communicate with the display device, the third device stores the application program, and the display device further when information from the third device requesting a third communication between the third device and the display device is received by the application program while the first image is being displayed in the display region, transmits information indicating that the third communication was requested to one or both of the first device and the second device and when the display device receives information from the first device or the second device indicating that the third communication was accepted, establishes the third communication. ### Claim 3 (depends on 1) The control method according to claim 1, wherein the display system includes a third device configured to communicate with the display device, the third device stores the application program, and the display device further when the third device requests a third communication between the third device and the display device while a second image based on image data transmitted from the second device is being displayed in the display region, transmits, to the first device, information indicating that the third communication was requested to the first device and when information indicating that the third communication was accepted is received from the first device, establishes the third communication. ### Claim 4 (depends on 1) The control method according to claim 1, wherein the display system includes a third device configured to communicate with the display device, the third device stores the application program, and the display device further when a third communication between the third device and the display device is requested from the third device while the first image is being displayed in the display region, transmits, to the second device, information indicating that the third communication was requested and when information indicating that the third communication was accepted is received from the second device, establishes the third communication. ### Claim 5 A display device that establishes first communication with a first device via a wired cable, that is configured to communicate with a second device, and that is configured to display an image in a display region, wherein the first device and the display device are configured to communicate with each other via a network, the first device does not store an application program, the second device stores the application program, and when information requesting a second communication between the second device and the display device is received from the second device by the application program while the first image is being displayed in the display region, the display device transmits information indicating that the second communication was requested to the first device via the network or the wired cable and when information indicating that the second communication was accepted is received from the first device via the network or the wired cable, the display device establishes the second communication.